Volute assembly and household appliance

Abstract

The present application discloses a volute assembly and a household appliance, wherein the volute assembly includes a volute body and a motor assembly, wherein the volute body is provided with a mounting portion; the motor assembly includes a motor, and the motor is at least partially mounted on the mounting portion; wherein at least a portion of the volute body serves as a first heat conducting member, and a second heat conducting member is provided between the motor and the first heat conducting member, and the heat generated by the motor is conducted to the first heat conducting member by the second heat conducting member. The volute assembly of the present application can dissipate heat from the motor, thereby improving the performance of the motor.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a volute assembly and a household appliance. Background Art

[0002] The existing volute fan includes a volute, a motor and a moving impeller. The moving impeller rotates to generate airflow, which is discharged after being expanded by the volute. The motor is set in the volute, and the motor is usually not in contact with the external airflow, which reduces the heat dissipation efficiency of the motor and thus affects the motor performance. Utility Model Content

[0003] The present application provides a volute assembly and a household appliance to solve the technical problem that in the existing volute fan, the motor is arranged in the volute, the motor is usually not in contact with the external airflow, the heat dissipation efficiency of the motor is reduced, and the motor performance is affected.

[0004] In order to solve the above technical problems, the present application proposes a volute assembly, comprising: a volute body provided with a mounting portion; a motor assembly, comprising a motor, and the motor is at least partially installed on the mounting portion; wherein at least a portion of the volute body serves as a first heat conductor, and a second heat conductor is provided between the motor and the first heat conductor, and the heat generated by the motor is conducted from the second heat conductor to the first heat conductor.

[0005] Wherein, the mounting portion is a second heat conducting member.

[0006] Wherein, the first heat conducting member and / or the second heat conducting member include metal members.

[0007] Wherein, a heat-conducting layer is arranged between the mounting portion and the motor.

[0008] The volute assembly includes a fixing bracket, which locks the motor to the mounting portion.

[0009] Among them, the fixing bracket is provided with a first fixing hole, the outer periphery of the motor is provided with a first arc-shaped groove, the inner side wall of the mounting part is provided with a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are arranged to form a mounting hole, and the first fixing member is used to lock the motor to the mounting part through the first fixing hole and the mounting hole.

[0010] The fixing bracket is provided with a second fixing hole, and the second fixing piece passes through the second fixing hole for installing the electric control board.

[0011] Wherein, the fixing bracket is the third heat conducting member.

[0012] Wherein, a second fixing portion is arranged on a side of the fixing bracket facing the motor, and the motor is at least partially installed in the second fixing portion.

[0013] The volute body includes a first volute body and a second volute body, the first volute body and the second volute body are detachably connected, the mounting portion is arranged on the surface of the first volute body away from the second volute body, and the first volute body is a first heat conductor.

[0014] In order to solve the above technical problems, the present application proposes a household appliance, comprising the volute assembly described above.

[0015] The volute assembly of the present application includes a volute body and a motor assembly. The volute body is provided with a mounting portion. The motor assembly includes a motor. The motor is at least partially mounted on the mounting portion. Among them, at least a portion of the volute body serves as a first heat conductor, and a second heat conductor is provided between the motor and the first heat conductor, and the heat generated by the motor is conducted from the second heat conductor to the first heat conductor. The volute body functions together as the first heat conductor and the second heat conductor, so that the heat generated by the motor can be transferred to the volute body, and the heat on the volute body is taken away by convection heat exchange between the airflow and the surface of the volute body, which can dissipate the heat from the motor, thereby improving the performance of the motor. Compared with the existing volute assembly, the volute assembly in this embodiment can improve the motor power on the basis of improving the performance of the motor by conducting the heat of the motor to the volute body, so as to meet the requirements of the volute assembly such as the vacuum degree and large suction force, thereby improving the overall reliability of the volute assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a volute assembly of the present application;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure shown;

[0019] Figure 3 It is an exploded schematic diagram of an embodiment of a volute assembly of the present application;

[0020] Figure 4 yes Figure 3 The structural schematic diagram of B shown;

[0021] Figure 5 is a cross-sectional schematic diagram of an embodiment of a volute assembly of the present application;

[0022] Figure 6 It is a partial schematic diagram of an embodiment of a volute assembly of the present application;

[0023] Figure 7 It is a schematic diagram of the structure of the fixed bracket in the volute assembly of the present application;

[0024] Figure 8 It is a simplified structural diagram of an embodiment of the household appliance of the present application.

[0025] Figure numbers: 10, volute assembly; 11, volute body; 11a, first end; 11b, second end; 111, first volute body; 112, second volute body; 113, mounting portion; 1131, second arc-shaped groove; 1132, mounting hole; 12, motor assembly; 121, motor; 1211, first winding bracket; 1212, second winding bracket; 1213, motor stator fixing bracket; 12131, first arc-shaped groove; 12132, positioning groove; 122, impeller; 13, fixing bracket; 131, first fixing portion; 1311, first fixing hole; 132, lug portion; 1321, second fixing hole; 133, second fixing portion; 100, household appliance. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] A volute assembly and a household appliance provided by the utility model are described in detail below in conjunction with the embodiments.

[0029] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of an embodiment of a volute assembly of the present application; Figure 2 yes Figure 1A structural diagram of FIG. 1 is shown. The present application provides a volute assembly 10. The volute assembly 10 includes a volute body 11 and a motor assembly 12. The volute body 11 is provided with a mounting portion 113. The mounting portion 113 is used to at least partially mount the motor 121 in the motor assembly 12. The mounting portion 113 is detachably or fixedly connected to the volute body 11. The detachable method may be snap-on, plug-in, etc. The fixing method may be welding or one-piece molding connection, etc.

[0030] The motor assembly 12 includes a motor 121. The motor 121 provides driving force for the impeller 122 mentioned later. The motor 121 is at least partially mounted on the mounting portion 113. Among them, at least a portion of the volute body 11 serves as a first heat-conducting member. A second heat-conducting member is provided between the motor 121 and the first heat-conducting member. Both the first heat-conducting member and the second heat-conducting member have a heat-conducting function. The heat generated by the motor 121 is conducted from the second heat-conducting member to the first heat-conducting member.

[0031] Thus, through the above-mentioned volute body 11 acting as the first heat conducting member and the second heat conducting member, at least part of the heat generated by the motor 121 can be transferred to the volute body 11, and the heat on the volute body 11 can be taken away by convection heat exchange between the airflow and the surface of the volute body 11, which can dissipate heat from the motor 121, thereby improving the performance of the motor 121. Compared with the existing volute assembly 10, the volute assembly 10 in this embodiment can improve the power of the motor 121 on the basis of improving the performance of the motor 121 by transferring the heat of the motor 121 to the volute body 11, so as to meet the requirements of the volute assembly 10 for high vacuum degree and large suction, thereby improving the overall reliability of the volute assembly 10.

[0032] The mounting portion 113 may or may not have a heat conduction function. For example, in a specific embodiment, the mounting portion 113 has a heat conduction function. Since the mounting portion 113 is used to at least partially mount the motor 121 in the motor assembly 12, the heat generated by the motor 121 is at least partially transferred to the mounting portion 113; at the same time, since the mounting portion 113 is connected to the volute body 11, the heat of the mounting portion 113 is transferred to the volute body 11. In the above manner, not only the number of parts is reduced and costs are saved, but also the heat of the motor 121 can be dissipated, thereby improving the performance of the motor 121.

[0033] The material of the first heat conductor and the material of the second heat conductor may be the same or different. Among them, the first heat conductor may include a metal part. Or, the second heat conductor may include a metal part. Or, both the first heat conductor and the second heat conductor include a metal part. The metal part has a heat-conducting effect and can achieve heat conduction so that at least part of the heat generated by the motor 121 is ultimately conducted to the volute body 11. The metal part may be a pure metal material or a metal alloy material, etc. The pure metal material may be, but is not limited to, aluminum, iron, copper, etc. As in the present embodiment, the mounting portion 113 and the volute body 11 are both made of aluminum. In other embodiments, the first heat conductor and / or the second heat conductor may also include alloy parts, semiconductors, etc.

[0034] In some embodiments, a heat conducting layer (not shown in the figure) is provided between the mounting portion 113 and the motor 121. The heat conducting layer plays a role of heat conduction. The heat conducting layer can more easily conduct the heat generated by the motor 121 to the mounting portion 113, thereby improving the heat conduction efficiency.

[0035] The above-mentioned heat-conducting layer can be, but is not limited to, heat-conducting glue (not shown in the figure), heat-conducting pad (not shown in the figure), heat-conducting metal layer, heat-conducting non-metal layer, etc. When the heat-conducting layer is heat-conducting glue, the heat-conducting glue can not only fill the gap between the motor 121 and the mounting portion 113, which is beneficial to heat conduction; but also play a fixing role, making it easier to fix the motor 121 in the mounting portion 113, and improving the installation stability of the motor 121.

[0036] See also Figure 3 and Figure 4 , Figure 3 It is an exploded schematic diagram of an embodiment of a volute assembly of the present application; Figure 4 yes Figure 3 The structural diagram of B is shown. Figure 1 and Figure 2 In some embodiments, the volute assembly 10 includes a fixing bracket 13. The fixing bracket 13 can lock the motor 121 to the mounting portion 113, and is used to limit the motor 121 to reduce the vertical movement of the motor 121.

[0037] Specifically, the fixing bracket 13 is provided with at least one first fixing hole 1311. A first arc groove 12131 is provided on the outer periphery of the motor 121. A second arc groove 1131 is provided on the inner side wall of the mounting portion 113. The first arc groove 12131 and the second arc groove 1131 are arranged to form a mounting hole 1132. The first fixing member (not shown in the figure) is used to lock the motor 121 to the mounting portion 113 through the first fixing hole 1311 and the mounting hole 1132. If the first fixing member passes through the first fixing hole 1311 and the mounting hole 1132 in sequence, not only the motor 121 is locked and the vertical movement of the motor 121 is reduced; but also the rotational movement of the motor 121 in the mounting portion 113 can be limited.

[0038] The first arc groove 12131 and the second arc groove 1131 have the same and symmetrical structures. Alternatively, the first arc groove 12131 and the second arc groove 1131 have different structures, wherein the arc length of the first arc groove 12131 is greater than the arc length of the second arc groove 1131; or, the arc length of the first arc groove 12131 is less than the arc length of the second arc groove 1131. The arc lengths of the first arc groove 12131 and the second arc groove 1131 can be determined according to requirements, as long as the first arc groove 12131 and the second arc groove 1131 are surrounded to form the mounting hole 1132.

[0039] The shapes of the first fixing hole 1311 and the mounting hole 1132 may be the same. The first fixing member may be a first fixing bolt. An inner thread may be provided on the inner wall of the mounting hole 1132. The outer thread on the outer periphery of the first fixing bolt is threadedly connected with the inner thread. The number of the first fixing holes 1311 may be, but is not limited to, two, three, or more than four.

[0040] See also Figure 5 and Figure 6 , Figure 5 is a cross-sectional schematic diagram of an embodiment of a volute assembly of the present application; Figure 6 1 is a partial schematic diagram of an embodiment of the volute assembly of the present application. Figures 1 to 4 Further, the motor 121 includes a first winding bracket 1211, a second winding bracket 1212 and a motor stator fixing bracket 1213. The first winding bracket 1211 and the second winding bracket 1212 are both used for winding copper coils. Most of the heat of the motor 121 is generated by the copper coils on the first winding bracket 1211 and the second winding bracket 1212. Among them, the first winding bracket 1211 and the second winding bracket 1212 are at least partially located in the mounting portion 113, so that the heat of the copper coil is transferred to the volute body 11 through the mounting portion 113. The motor stator fixing bracket 1213 is used to reduce the hysteresis loss of the copper coil and increase the induced electromotive force. The first winding bracket 1211 is at least partially inserted along one end of the motor stator fixing bracket 1213. The second winding bracket 1212 is at least partially inserted along the other end of the motor stator fixing bracket 1213. Among them, the first winding bracket 1211 and the second winding bracket 1212 can be at least partially plugged in. The first arc groove 12131 is arranged on the outer wall of the motor stator fixing frame 1213. That is, the motor stator fixing frame 1213 and the mounting portion 113 are surrounded to form the mounting hole 1132. The heat conducting layer is arranged between the motor stator fixing frame 1213 and the mounting portion 113.

[0041] Furthermore, the outer wall of the motor stator fixing frame 1213 is provided with a positioning groove 12132. During the processing of the motor stator fixing frame 1213, the positioning groove 12132 can play a positioning role. The number of the positioning grooves 12132 can be one, two, or more. The positioning groove 12132 is arranged adjacent to the first arc-shaped groove 12131. As in this embodiment, the positioning grooves 12132 are arranged adjacent to both ends of the first arc-shaped groove 12131.

[0042] See also Figure 7 , Figure 7 Schematic diagram of the structure of the fixed bracket in the volute assembly of the present application. Figures 1 to 6 In some embodiments, the fixing bracket 13 is provided with a second fixing hole 1321. The second fixing member (not shown in the figure) is used to install the electric control board (not shown in the figure) through the second fixing hole 1321. The second fixing member and the second fixing hole 1321 cooperate with each other to achieve the installation and removal of the electric control board. Among them, a third fixing hole (not shown in the figure) can be provided on the electric control board. That is, the second fixing member passes through the second fixing hole 1321 and the third fixing hole in sequence, and fixes the electric control board on the fixing bracket 13.

[0043] The second fixing hole 1321 and the first fixing hole 1311 can be arranged adjacent to each other. The outer periphery of the fixing bracket 13 is provided with a lug 132. The lug 132 is provided with the second fixing hole 1321. The fixing bracket 13 can be provided with at least two first fixing holes 1311. The number of first fixing holes 1311 can be but not limited to two, three or more than four. The fixing bracket 13 can be provided with at least two second fixing holes 1321. Among them, the number of first fixing holes 1311 and the number of second fixing holes 1321 can be the same or different. As in the present embodiment, the number of first fixing holes 1311 and the number of second fixing holes 1321 are both three. Each first fixing hole 1311 and the corresponding second fixing hole 1321 are arranged adjacent to each other. The fixing bracket 13 includes three first fixing holes 1311, and the horizontal cross-sectional shape of the fixing bracket 13 is triangular, which can improve the stability of the installation of the motor 121.

[0044] In some embodiments, the fixing bracket 13 is provided with a first fixing portion 131. The first fixing portion 131 is provided with the above-mentioned first fixing hole 1311. The lug portion 132 is fixed to the outer periphery of the first fixing portion 131. In order to improve the stability of the motor 121 installed on the volute body 11, the number of the first fixing portions 131 can be three or more than four. As in the present embodiment, there are three first fixing portions 131. The fixing bracket 13 is mounted on the volute body 11 through three first fixing portions 131, which is not only convenient for the installation of the motor 121, but also for the installation of the electric control board, and also convenient for the airflow to pass through the space between the fixing bracket 13 and the volute body 11, thereby improving the heat dissipation efficiency. Among them, the number of the first fixing portion 131 and the lug portion 132 are the same, and the three lug portions 132 are located at the outer periphery of the plane where the mounting portion 113 is located, perpendicular to the positive projection of the mounting portion 113, thereby realizing the installation and disassembly of the electric control board.

[0045] In some embodiments, the fixed bracket 13 is a third heat-conducting member. The fixed bracket 13 has a heat-conducting effect, and can transfer at least part of the heat of the mounting portion 113 to the fixed bracket 13. That is, the heat on the fixed bracket 13 is taken away by the external airflow and the surface convection heat exchange of the fixed bracket 13, which can dissipate the heat of the motor 121, thereby improving the performance of the motor 121. The heat conduction efficiency is improved by the cooperation between the third heat-conducting member and the second heat-conducting member. The third heat-conducting member can be, but is not limited to, a metal member and an alloy member. The material of the third heat-conducting member can be the same as or different from the material of the first heat-conducting member and / or the second heat-conducting member. As in the present embodiment, the materials of the mounting portion 113, the volute body 11 and the fixed bracket 13 can all be aluminum materials, etc.

[0046] In some embodiments, a second fixing portion 133 is provided on a side of the fixing bracket 13 facing the motor 121. The second fixing portion 133 is fixedly connected or detachably connected to a side of the fixing bracket 13 facing the motor 121. As in the present embodiment, the second fixing portion 133 is integrally formed and connected to the fixing bracket 13. The motor 121 is at least partially installed in the second fixing portion 133. The motor 121 is limited by the second fixing portion 133 to reduce the risk of the motor 121 coming out during movement. For example, the second fixing portion 133 is used to install the rotating shaft of the motor 121. In the actual process, at least part of the heat generated by the motor 121 can also be directly conducted to the second fixing portion 133 and its fixing bracket 13. Among them, the second fixing portion 133 also has a heat conducting effect. The material of the second fixing portion 133 can be the same as or different from the material of the fixing bracket 13. As in the present embodiment, the material of the second fixing portion 133 and the material of the fixing bracket 13 are both aluminum.

[0047] See also Figure 1 , Figure 3 as well as Figure 5In some embodiments, the volute body 11 includes a first volute body 111 and a second volute body 112. The first volute body 111 and the second volute body 112 are detachably connected. The detachable method may be snap-on, plug-in, and bolted connection. As in the present embodiment, the first volute body 111 and the second volute body 112 are snap-on. The mounting portion 113 is disposed on the surface of the first volute body 111 away from the second volute body 112. The first volute body 111 is located at the lower part of the volute body 11 and may be a lower volute. The second volute body 112 is located at the upper part of the volute body 11 and may be an upper volute. The volute body 11 is formed by the first volute body 111 and the second volute body 112, which facilitates the installation and disassembly of the motor assembly 12 and the like in the volute assembly 10. The first volute body 111 is a first heat conductor. That is, the heat generated by the motor 121 is conducted to the first volute casing 111 by the mounting portion 113 , and the heat on the first volute casing 111 is taken away by convection heat exchange between the external airflow and the surface of the first volute casing 111 , which can dissipate the heat of the motor 121 and thereby improve the performance of the motor 121 .

[0048] In some embodiments, the second volute 112 may or may not have a heat-conducting effect. When the second volute 112 has a heat-conducting effect, at least part of the heat on the first volute 111 can be transferred to the second volute 112, that is, the external airflow and the surface of the second volute 112 conduct heat to take away the heat on the second volute 112, which can dissipate heat from the motor 121, thereby improving the performance of the motor 121. Among them, the second volute 112 can be the above-mentioned first heat-conducting member. The material of the above-mentioned second volute 112 can be the same as or different from the material of the first volute 111. For example, the material of the second volute 112 and the material of the first volute 111 are both aluminum. Or, the material of the first volute 111 is aluminum, and the material of the second volute 112 is copper, etc. As a result, the volute assembly 10 can conduct heat through the above-mentioned mounting portion 113, the first volute 111, and / or the second volute 112, and / or the fixing bracket 13, and can dissipate heat from the motor 121, etc.

[0049] In some embodiments, the volute body 11 includes a first end 11a and a second end 11b that are arranged opposite to each other. The first end 11a is provided with the above-mentioned mounting portion 113. The first volute body 111 is provided with the above-mentioned mounting portion 113 and a fixing bracket 13 near the first end 11a. The second volute body 112 is provided with an air inlet near the second end 11b, and the air inlet is used for air intake.

[0050] In some embodiments, the motor assembly 12 further includes an impeller 122. The impeller 122 is connected to the motor 121 shaft of the motor 121. The impeller 122 is located in the volute body 11. The motor 121 drives the impeller 122 to rotate in the volute body 11. The impeller 122 is located in a space formed by the first volute body 111 and the second volute body 112.

[0051] Compared with the prior art, the volute assembly of the present application includes a volute body and a motor assembly. The volute body includes a first end and a second end that are relatively arranged. A mounting portion is convexly provided at the first end. The motor assembly includes a motor. The motor is at least partially mounted on the mounting portion. Among them, the volute body is a first heat conductor, the mounting portion is a second heat conductor, and the heat generated by the motor is conducted from the second heat conductor to the first heat conductor. Through the combined effect of the volute body being the first heat conductor and the mounting portion being the second heat conductor, the heat generated by the motor can be transferred to the volute body, and the heat on the volute body is taken away by the convection heat exchange between the airflow and the surface of the volute body, which can dissipate the heat of the motor and thereby improve the performance of the motor. Compared with the existing volute assembly, the volute assembly in this embodiment can improve the motor power by conducting the heat of the motor to the volute body, on the basis of improving the performance of the motor, so as to meet the requirements of the vacuum degree and large suction force of the volute assembly, thereby improving the overall reliability of the volute assembly.

[0052] See also Figure 8 , Figure 8 This is a simplified structural diagram of an embodiment of the household appliance of the present application. Figures 1 to 7 , the present application provides a household appliance. The household appliance 100 includes a volute assembly 10. The volute assembly 10 in this embodiment is the volute assembly 10 described in the above embodiment, and will not be repeated here. By using the above-mentioned volute assembly 10, the household appliance 100 can transfer the heat generated by the motor 121 in the volute assembly 10 to the volute body 11, and the airflow and the surface of the volute body 11 conduct convection heat exchange to take away the heat from the volute body 11, thereby achieving heat dissipation for the motor 121, thereby improving the performance of the motor 121, etc. On the basis of improving the performance of the motor 121, the power of the motor 121 can also be increased to meet the requirements of high vacuum and high suction of the volute assembly 10, thereby improving the overall reliability of the household appliance 100. The above-mentioned household appliance 100 can be, but is not limited to, a sweeper, a mop, a sweeper and mopper, a base station, etc.

[0053] The terms "first", "second", "third" in this application are only used for descriptive purposes and cannot be understood as indicating the quantity of the indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of these features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "include" and "have" and any of their variations are intended to cover non-exclusive inclusions. The process, method, system, product or equipment such as including a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0054] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A volute assembly, characterized in that: include: A volute body, wherein the volute body is provided with a mounting portion; A motor assembly, comprising a motor, wherein the motor is at least partially mounted on the mounting portion; Wherein, at least a portion of the volute body serves as a first heat-conducting member, a second heat-conducting member is provided between the motor and the first heat-conducting member, and the heat generated by the motor is conducted to the first heat-conducting member by the second heat-conducting member.

2. The volute assembly according to claim 1, characterized in that: The mounting portion is the second heat conducting member.

3. The volute assembly according to claim 1, characterized in that: The first heat conducting member and / or the second heat conducting member comprises a metal member.

4. The volute assembly according to claim 1, characterized in that: A heat conducting layer is arranged between the mounting portion and the motor.

5. The volute assembly according to claim 1, characterized in that: The volute assembly includes a fixing bracket, which locks the motor to the mounting portion.

6. The volute assembly according to claim 5, characterized in that: The fixing bracket is provided with a first fixing hole, the outer periphery of the motor is provided with a first arc-shaped groove, the inner side wall of the mounting portion is provided with a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are arranged to form a mounting hole, and a first fixing member is passed through the first fixing hole and the mounting hole to lock the motor to the mounting portion.

7. The volute assembly according to claim 5, characterized in that: The fixing bracket is provided with a second fixing hole, and the second fixing member passes through the second fixing hole for installing the electric control board.

8. The volute assembly according to claim 5, characterized in that: The fixing bracket is a third heat conducting member.

9. The volute assembly according to claim 5, characterized in that: A second fixing portion is disposed on a side of the fixing bracket facing the motor, and the motor is at least partially installed in the second fixing portion.

10. The volute assembly according to claim 1, characterized in that: The volute body includes a first volute body and a second volute body, the first volute body and the second volute body are detachably connected, the mounting portion is arranged on a surface of the first volute body away from the second volute body, and the first volute body is the first heat conductor.

11. A household appliance, characterized in that: A volute assembly comprising any one of claims 1 to 10.

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